Answer to Question #61641 in Other Biology for muhammad umar

Question #61641
15 About ----------- percentage of all known species of animals are insect 20 30 40 70 16 The only invertebrate that can fly is Bats Squirrel Vulture Insects 17 The body of an insect is divided into the head, thorax and metathorax cephalopoda mesothorax abdomen 18 Insects carries out gaseous exchange by means of thorax metathorax abdomen spiracles 19 Which of these may not be an adaptive feature of the arthropods? possession of exoskeleton webbed feet jointed limbs pecialised digestive system 20 The phylum echinodermata include all of the following except sea crab sea urchins sea-lilies star fish
1
Expert's answer
2016-08-29T11:50:04-0400
15. 70
16. Insects
17. abdomen
18. spiracles
19. jointed limbs
20. sea crab

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